Yep.. we got one of those as well.. When I get to a campground I like to just un-hitch as fast a possible, we only lock the hitch when we're in that "certain state of mind".. but you're right we probably should just get into the habit..and just use the lock instead.. (and thanks for the spelling of carabiner!!)
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Former 17ft Plan "B" Escape
Toyota Highlander w/tow pkg